You can use the progress like in below code:
Private Sub WebKitBrowser1_Navigating(sender As System.Object, e As System.Windows.Forms.WebBrowserNavigatingEventArgs) Handles WebKitBrowser1.Navigating
ProgressBar1.Visible = True
With ProgressBar1
.Minimum = 0
.Maximum = 50
.Step = 3
End With
For index As Integer = 0 To 50 Step 5
ProgressBar1.Value = index
System.Threading.Thread.Sleep(38)
Next
Label1.Text = "Loading..."
End Sub
Private Sub WebKitBrowser1_DocumentCompleted(sender As System.Object, e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebKitBrowser1.DocumentCompleted
ProgressBar1.Visible = False
Label1.Text = "Done"
End Sub
Hope this will help you and dont forget to mark it as answer if that help you.